$(document).ready(function(){
	$(".personal_login").click(function(){
		$(this).attr("class","f_left navigation navigation_xz personal_login");
		$(".enterprise_login").attr("class","f_left navigation2 enterprise_login");
		$(".navigation_b_2").attr("class","f_left navigation_b_2 navigation_b_sg1");
		$(".navigation_b_1").attr("class","f_left navigation_b_1 navigation_b_sg");
		$("#enterprise_login").css("display","none");
		$("#personal_login").css("display","block");
	});
	$(".enterprise_login").click(function(){
		$(this).attr("class","f_left navigation2 navigation_xz enterprise_login");
		$(".personal_login").attr("class","f_left navigation personal_login");
		$(".navigation_b_2").attr("class","f_left navigation_b_2 navigation_b_sg");
		$(".navigation_b_1").attr("class","f_left navigation_b_1 navigation_b_sg1");
		$("#enterprise_login").css("display","block");
		$("#personal_login").css("display","none");
	});
});